ISP1161A1BMGA STEricsson, ISP1161A1BMGA Datasheet - Page 82

• Manufacturer Part Number: ISP1161A1BMGA
• Manufacturer: STEricsson

Specifications of ISP1161A1BMGA

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

ISP1161A1_5
Product data sheet
Fig 38. Suspend and resume timing.
SUSPEND
WAKEUP
GOSUSP
USB bus
INT_N
11.4.1.1 Powered-off application
In
Figure 39
SUSPEND output switches off power to the microcontroller and other external circuits
during the suspend state. The ISP1161A1 DC is woken up through the USB bus (global
resume) or by the ring detection circuit on the telephone line.
Fig 39. SUSPEND and WAKEUP signals in a powered-off modem application.
•
•
•
•
Figure
A: indicates the point at which the USB bus enters the idle state.
B: indicates resume condition, which can be a 20 ms K-state on the USB bus, a HIGH
level on pin D_WAKEUP, or a LOW level on pin CS.
C: indicates remote wake-up. The ISP1161A1 will drive a K-state on the USB bus for
10 ms after pin D_WAKEUP goes HIGH or pin CS goes LOW.
D: after detecting the suspend interrupt, set and clear bit GOSUSP in the DcMode
register.
A
38:
shows a typical bus-powered modem application using the ISP1161A1. The
> 3 ms
suspend
interrupt
USB
V BUS
Rev. 05 — 29 September 2009
DP
DM
idle state
> 5 ms
1.8 ms to 2.2 ms
ISP1161A
V BUS
SUSPEND
D
WAKEUP
B
0.5 ms to 3.5 ms
interrupt
resume
USB single-chip host and device controller
RING DETECTION
C
V CC
RST
8031
K-state
10 ms
004aaa674
ISP1161A1
LINE
© ST-ERICSSON 2009. All rights reserved.
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